Table 2

Regression analysis between general characteristics, disease-related characteristics, classical cardiovascular disease risk factors and the SEVR

Primary cohort

Validation cohort

General characteristics

Age

β = 0.02, P = 0.79

β = 0.03, P = 0.73

Gender

0.97 (0.96 to 0.99)*

0.98 (0.96 to 0.99)*

Disease-related characteristics

Log disease duration

β = 0.21, p = 0.01

β = 0.12, P = 0.21

RF positivity

0.90 (0.99 to 1.02)

n/a

Log ESR

β = -0.20, P = 0.01

β= -0.144, P = 0.131

Log CRP

β = -0.23, P = 0.003

β = -0.28, P = 0.002

DAS28

β = -0.12, P = 0.09

n/a

HAQ

β = -0.11, P = 0.16

n/a

Classical CVD risk factors

Body mass index

β = - 0.13, P = 0.05

β = - 0.19, P = 0.18

Pulse pressure

β = -0.23, P = 0.004

β = - 0.21, P = 0.017

Mean blood pressure

β = -0.10, P = 0.15

β = -0.17, P = 0.05

Heart rate

β = -0.64, P < 0.001

β = -0.76 P < 0.001

Total cholesterol

β = -0.12, P = 0.09

β = -0.14, P = 0.14

TC:HDL ratio

β = -0.02, P = 0.76

β = -0.09, P = 0.35

Triglycerides

β = -0.01, P = 0.90

β = 0.01, P = 0.94

Data presented as β and P values or odds ratio (95% confidence interval). CRP, C reactive protein; CVD, cardiovascular disease; DAS28, Disease Activity Score in 28 joints; ESR, erythrocyte sedimentation rate; HAQ, Health Assessment Questionnaire; HDL, high density lipoprotein; n/a, not available; RF, rheumatoid factor; SEVR, subendocardial viability ratio; TC, total cholesterol. *P < 0.001. Bold data represent statistically significant results.

Sandoo et al. Arthritis Research & Therapy 2012 14:R258   doi:10.1186/ar4103